Algebra 1 · Systems of Equations & Inequalities

Linear Inequality (Graph)

Algebra 1 · Systems of Equations & Inequalities

Definition

A graphed linear inequality shows a boundary line and shading on the side that satisfies the inequality.

Examples

  • Graph y > x + 1 with a dashed line, shaded above.
  • Use a solid line for <= or >=.

Key rule

Dashed for strict, solid for inclusive; shade the true side.

Memory hook

Dashed or solid line, then shade the winning side.